The first half is horribly claustrophobic and oppressive as Ma tries to turn her living hell into something positive for her son. The psychological torment continues after they break out and this is just as much a film about post traumatic stress as it is about the simple and unshakeable bond between parent and child. This wouldn't work of the actors weren't excellent - Brie Larson's Oscar is fully deserved.
Oh my god, this movie was perfect. So intense, got me crying a few long times. Jack is amazing and Jacob is really so lovely. The scene where they escape is really mind blowing. The characters development in the real world is breath taking. Every colour tone, every move, every gesture, every look, all the acting and the details on all scenes are so compelling. Beautifully made.